Engineering:Tachikawa Ki-55

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Short description: Japanese military trainer aircraft
Ki-55
General information
ManufacturerTachikawa Aircraft Company
Management and usageImperial Japanese Army Air Force
Royal Thai Air Force
Number built1,389
History
Manufactured1940 - 1943
First flightSeptember 1939
Retired1945 (Japan)
1953 (China)
Developed fromTachikawa Ki-36

The Tachikawa Ki-55 (Allied reporting name Ida) was a Japanese advanced trainer.

Design and development

The excellent characteristics of the Tachikawa Ki-36 made it potentially ideal as a trainer. This led to the development of the Ki-55 with a single machine gun 12,7mm. After successful testing of a prototype in September 1939, the type was put into production as the Tachikawa Army Type 99 Advanced Trainer.

In all, 1,389 Ki-55 were constructed before production ended in December 1943 - with Tachikawa having built 1078 and Kawasaki 311.[1]

Both the Ki-55 and the Ki-36 were given the Allied nickname Ida.

Variants

Ki-36
Army co-operation aircraft.
Ki-72
An evolved version with a 447 kW (599 hp) Hitachi Ha38 engine and retractable undercarriage. Not built.

Operators

Tachikawa Ki-36 trainer at the Royal Thai Air Force Museum
A 1948 Indonesian stamp featuring Ki-55
 Japan
  • Imperial Japanese Army Air Force
  • Kumagaya Army Flying School
  • Mito Army Flying School
  • Tachiarai Army Flying School
  • Utsonomiya Army Flying School
 Manchukuo
  • Manchukuo Air Force
Reorganized National Government of China
  • National Government of China Air Force received several from the Japanese.
 Republic of China
  • Republic of China Air Force operated captured aircraft.
 People's Republic of China
  • People's Liberation Army Air Force operated more than 30 captured aircraft at the end of 1945. These Ki-55s were used until the last 14 retired in 1953.
 Indonesia
  • Indonesian Air Force (then called Indonesian People's Security Force)[2]
 Thailand
  • Royal Thai Air Force

Francillon also mentions delivery to the Japanese satellite air force of Cochinchina, the southernmost third part of present Vietnam[3]

Specifications (Ki-55)

3-view drawing of the Tachikawa Ki-55

Data from Japanese Aircraft of the Pacific War[4]

General characteristics

  • Crew: 2
  • Length: 8 m (26 ft 3 in)
  • Wingspan: 11.8 m (38 ft 9 in)
  • Height: 3.64 m (11 ft 11 in)
  • Wing area: 20 m2 (220 sq ft)
  • Airfoil: root: NACA 23014; tip: NACA 23006[5]
  • Empty weight: 1,292 kg (2,848 lb)
  • Gross weight: 1,721 kg (3,794 lb)
  • Powerplant: 1 × Hitachi Ha13a (Army Type 98 450hp Air Cooled Radial) 9-cylinder air-cooled radial piston engine, 380 kW (510 hp) for take-off
350 kW (470 hp) at 1,700 m (5,600 ft)
  • Propellers: 2-bladed wooden propeller

Performance

  • Maximum speed: 349 km/h (217 mph, 188 kn) at 2,200 m (7,200 ft)
  • Cruise speed: 235 km/h (146 mph, 127 kn)
  • Range: 1,060 km (660 mi, 570 nmi)
  • Service ceiling: 8,200 m (26,900 ft)
  • Time to altitude: 3,000 m (9,800 ft) in 6 minutes 55 seconds
  • Wing loading: 86.1 kg/m2 (17.6 lb/sq ft)
  • Power/mass: 0.222 kW/kg (0.135 hp/lb)

Armament

See also

Related development

Related lists

References

Bibliography

  • Francillon, René J. (1979). Japanese aircraft of the Pacific War. London: Putnam. ISBN 0-370-30251-6. OCLC 6124909.  (new edition 1987 by Putnam Aeronautical Books, ISBN 0-85177-801-1); 3rd edition 1987, Putnam Aeronautical Books. ISBN 0-85177-801-1.)
  • Green, William; Swanborough, Gordon (n.d.). "Pentagon Over the Islands: The Thirty-Year History of Indonesian Military Aviation". Air Enthusiast Quarterly (2): 154–162. ISSN 0143-5450. 

Template:Tachikawa aircraft Template:Japanese Army Aircraft Designation System